PandaBoard ES stuck during boot - wrong .dtb loaded

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PandaBoard ES stuck during boot - wrong .dtb loaded

Postby f0rki » Thu Nov 19, 2015 5:32 pm

Hi,

I had troubles booting my PandaBoard ES. It was stuck at
$this->bbcode_second_pass_code('', '
[ 4.164001] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 4.171234] omap2_set_init_voltage: unable to set vdd_mpu
[ 4.176940] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 4.184295] omap2_set_init_voltage: unable to set vdd_core
[ 4.190124] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 4.197418] omap2_set_init_voltage: unable to set vdd_iva
[ 4.205200] cpufreq: cpufreq_online: CPU0: Running at unlisted freq: 699977 KHz
[ 4.213073] cpufreq: cpufreq_online: CPU0: Unlisted initial frequency changed to: 800000 KHz
')
Full output at http://pastie.org/10567007

At the beginning of the boot process I can see
$this->bbcode_second_pass_code('', '
loading /boot/dtbs/omap4-panda.dtb ...
')

This should actually load omap4-panda-es.dtb, right? I can get the system to boot by renaming the dtb file. I did the following, while preparing the sdcard:
$this->bbcode_second_pass_code('', '
mv mnt/boot/dtbs/omap4-panda.dtb mnt/boot/dtbs/omap4-panda.dtb.bak
cp mnt/boot/dtbs/omap4-panda-es.dtb mnt/boot/dtbs/omap4-panda.dtb
')

Is this a bug or lack of documentation? Where to report this?

Best Regards
f0rki
 
Posts: 2
Joined: Thu Jul 02, 2015 4:39 pm

Re: PandaBoard ES stuck during boot - wrong .dtb loaded

Postby yoj2ce » Sun Nov 29, 2015 11:16 am

Same problem here with a Pandaboard ES B1. The docs should be updated to tell Pandaboard ES users to rename the DTB file before booting.
yoj2ce
 
Posts: 1
Joined: Sun Nov 29, 2015 11:14 am

Re: PandaBoard ES stuck during boot - wrong .dtb loaded

Postby summers » Mon Nov 30, 2015 11:56 am

Pandabaord uses uboot IIRC (or at least mine does), if so the device tree file is set in the uboot enviroment variables - e.g. on my NSA325 it is set to:

fdtfile=kirkwood-nsa325.dtb

Which you can see using fw_printenv

I guess you want something like:

fw_setenv fdtfile 'omap4-panda-es.dtb'

So really its a problem with the uboot package for the pandaboard .....
summers
 
Posts: 984
Joined: Sat Sep 06, 2014 12:56 pm


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